I'm worried about bacteri

I'm worried about bacteria in my drinking water. How can I be sure it's removed? EcoWater offers a microbiological drinking water purification system that is certified to reduce 99.9999% of bacteria, 99.99% of viruses and 99.95% cysts, such as giardia and cryptosporidia. www.alaskaecowater.com

EcoWater | water filters and softeners in Fairbanks and Wasilla Alaska
Filters, parts and full systems in Alaska for water softener and water treatment needs. Water treatment Fairbanks and Wasilla